feature: Norwegian translation

[stijoh]

Translation to Norwegian "bokmål"(nb)

[codecov]

Codecov Report

Merging #347 (e670901) into master (9fcfed4) will not change coverage.
The diff coverage is n/a.

❗ Current head e670901 differs from pull request most recent head 507fd18. Consider uploading reports for the commit 507fd18 to get more accurate results

@@           Coverage Diff           @@
##           master     #347   +/-   ##
=======================================
  Coverage   91.27%   91.27%           
=======================================
  Files         355      355           
  Lines        4686     4686           
=======================================
  Hits         4277     4277           
  Misses        409      409           

Impacted Files	Coverage Δ
spec/system/avo/default_field_spec.rb	95.12% <0.00%> (ø)

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